I can't upgrade firmware - from the UK on vodafone - yet either, it just offers me a python, how rude!
But, the maps are free, working perfectly and offline (ie not costing me an iota) having done the E52 trick.
Pipe down, stop complaining about somehting that's free and was never conditional to your purhcase in the first place and use the solution many of us have done!
This is a reply from ovibynokia on twitter regarding free navigation on N86:
"we're working hard to extend the new OviMaps also to your devices "
It will happen soon!